EP 0104332 A3 19851113 - PRINTING SYSTEM USING GRAPHIC DATA COMPRESSION
Title (en)
PRINTING SYSTEM USING GRAPHIC DATA COMPRESSION
Publication
Application
Priority
US 42357282 A 19820927
Abstract (en)
[origin: EP0104332A2] Each eight-bit byte of data from a memory (13) is presented to a decoder (15) which decodes three bits as printer control code modes and the other five bits as content information, primarily as numbers. Printer control code modes are: black in sequence, white in sequence, column-repeat, bit-for-bit, and base offset. The content information number is stored in register (21) (or register (19) for base offset) and printing in the form defined by the code mode is executed the number of times as stored in the register (21) ((19) for offset).
IPC 1-7
IPC 8 full level
B41J 2/485 (2006.01); G06K 15/10 (2006.01); G06K 15/22 (2006.01)
CPC (source: EP US)
G06K 15/10 (2013.01 - EP US)
Citation (search report)
- [A] US 4068224 A 19780110 - BECHTLE BASTIAN, et al
- [A] US 4079458 A 19780314 - RIDER RONALD E, et al
- [A] US 4204090 A 19800520 - HEINZL JOACHIM [DE]
- [AD] US 4121259 A 19781017 - PREUSS DIETER, et al
- [AD] US 4117517 A 19780926 - SHINTANI TAKAMASA, et al
- [AD] IBM TECHNICAL DISCLOSURE BULLETIN, vol. 20, no. 7, December 1977, pages 2555-2557, New York, US; W.B.GREENE et al.: "Image data compression algorithm"
- [AD] IBM TECHNICAL DISCLOSURE BULLETIN, vol. 23, no. 12, 12th May 1981, pages 5471,5472, New York, US; D.G.FITCH et al.: "Font data reduction by scan compression for ink jet printers"
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0104332 A2 19840404; EP 0104332 A3 19851113; EP 0104332 B1 19881130; CA 1193027 A 19850903; DE 3378599 D1 19890105; JP S5955762 A 19840330; US 4467363 A 19840821
DOCDB simple family (application)
EP 83106488 A 19830704; CA 434107 A 19830808; DE 3378599 T 19830704; JP 9512883 A 19830531; US 42357282 A 19820927